How Many? - a dictionary of units of measurement with commentaries and explanations of the English Customary, Metric, and International Systems.
Data Powers of Ten - shows various kinds of data storage media, such as tape, fables, disk, CD, cards, trucks filled with paper, encyclopaedias, telegrams and so on.
Dictionary of Units, A - an explanation of the principle systems of units, their history, standards, and conversion factors for changing from one to the other.
Measurement Science Conference - promoting education and professionalism in measurement science and related disciplines. January 28-29, Anaheim, CA.
Metrology Forum - the science of measurement or calibration and associated topics. Enlightenment to the uninitiated and soul-food to practitioners of this art.
Scales & Weights - photos of a collection of historical scales and weights, with trading opportunities.
Uncertainty of Measurement Results - guidelines for the expression of uncertainty in measurement from the National Institute of Standards and Technology.
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